Job johnson



J. JOHNSON. Combined Capital and Base for Metallic Columns.

Patented Mar. 2,1880.

UNITED STATES PATENT OFFICE.

JOB JOHNSON, O BROOKLYN, NEW YORK.

COMBINED CAPITAL AND BASE FOR METALLIC COLUMNS.

SPECIFICATION forming part of Letters Patent No. 225,060, dated March 2,1880.

Y Application led October 2, 1879.

To all whom it may concern: l

Be it known that l, JOB J OHNSQN, of Brooklyn, in the State of New York,have invented an Improvement in Combined Capital and Base for MetallicColumns, of which'the following is a specification.

Metallic columshave been made of wroughtiron tubes set into annularsockets at both the upper and the lower ends, and secured by melted leadpoured into the socket, as seen in Letters Patent N o. 1,7 6,000,granted to me. Structures, such as elevated railways and piers, havebeen made of these tubular columns.

My present invention relates to a combined capital and base, the samebeing adapted lto rest upon and besecured to the upper end of thetubular column, and to receive the lower end ot'a second column, ofthesame ora smaller size, resting within an annular sock-et upon the saidcombined capital and base. This combined capital and base is alsoadapted to the reception of braces and beams for oors, roofs, or,otherparts of the structure.

n the drawings, Figure l is a vertical section of two columns united bythe combined capital and base, and Fig. 2 is an inverted plan of thebase.

The foundation a is of stone, brick, or other suitable material. To thisthe base-plate b is attached by bolts c, or other suitable means,

' and it is preferable to introduce a sheet of lead, d, between thefoundation and said baseplate b, in order that the said base-plate b maybe evenly supported, because the lead will yield to inequalities ofpressure. The lower end of the column f is receivedV into the annu larsocket form ed between thecylindrical hubs h i of the plate b, and thesalneis secured by lead, as at o, the same as in my aforesaid patent.

My combined capital and base is made of a plate, 7c, with thecylindrical hubs a and Z on the lower surface, and the cylindrical hubsm and s upon the-upper surface, and with the brackets r.

The upper end ofthe column f passes into the annular socket between thecylindrical hubs Ln, and the same is leaded in, preferably,

while the column and plate'c are in an inverted position, and the secondcolumn, t, is introduced into the annular socket betweenv the hubs fmand s, and secured by lead poured into the crevice. The second column,t, may be the same size as the columnf, the annular socket being of theproper size, or the column may be smaller, as represented.

Thebeams or tinbers u u are represented as resting at their ends uponthe plate lr, and secured thereto by bolts, and the brackets r, betweenthe hub l and plate 7c, allow for bolts or braces w being introduced inthe structure between the capital ot one column and the base of thenext, `or other place ot' attach ment for the lower end of the brace.

I have represented upon the top of the column f a second combinedcapital and base, the same as that between the iirst and second columns.Numerous columns may be erected, one upon another, as before described,so as to form a structure of any desired height.

The center of the combined capital and base should be tubular, so thatwater or gas pipes may pass through the same; or drain-pipes orVentilating-tubes may be formed by or inserted into the tubular columnand combined capital and base.

l claim as my invention- The combined capital and base for tubularmetallic columns, consisting` of the plate lc, the hubs n l on the lowerside, the hubs m s upon the upper side, and the brackets lf between theplate 7c and the hub l, substantially as set forth.

Signed by methis 29th day of September, A. D. 187 9.

JOB JoHNsoN.

Witnesses GEO. T. PINGKNEY, CEAS. H. SMITH.

